Organisms in class Reptilia share the characteristic of

1
Organisms in class Reptilia share the
characteristic of
2
breathing with lungs at all stages of their
life.having scales.laying internally
fertilized eggs.
3
Manatees are considered not to be as intelligent
as dolphins because
4
their brain is very smooth compared to a
dolphins.
5
This marine mammal are specialized hunters of
their local food source
6
Killer Whales
7
The greatest threat facing the polar bear is?
8
Global Warming
9
The polar bear is found near what area on Earth?
10
only the arctic circle
11
Toothed whales (dolphins) have _____ blowhole(s),
while baleen whales have _____ blowhole(s).
12
1, 2
13
What fins do sharks have that dolphins do not?
14
Pelvic Fins, Anal Fins, and 2nd dorsal fins
15
The common ancestor to all modern whales came from
16
land
17
Polar Bears and Sea Otters belong to this order?
18
Carnivora
19
One significant difference between seals and sea
lions is
20
The shape and function of their hip bones
21
Next to humans which species is the most widely
dispersed in the world
22
Orca (Killer Whale)
23
The main difference between a manatee and a
dugong is
24
Shape of their tail
25
Dolphins produce high pitched clicks to find
food. This adaptation is called
26
echolocation
27
Dolphin family groupings consist primarily of
28
females and their juvenile young only
29
Dolphins family structures are called
30
Pods
31
Human activities that have endangered or may
endanger marine mammals include
32
whaling.overfishing.fur hunting.
33
The marine mammals in order Sirenia include
34
manatees and dugongs
35
Whales, porpoises, and dolphins belong to order
____.
36
Cetacea
37
Seals and sea lions belong to order ____, but
have differences including that seals ____ and
sea lions ____.
38
Pinnepedia, lack ear flaps, have ear flaps
39
Marine mammal adaptations to the challenges of
living in the sea include
40
the mammalian diving reflex.myoglobin for
storing oxygen.breathing air to meet oxygen
demands.
41
Organisms in class Mammalia have characteristics
that include
42
that almost all give birth to live
young.nourishing their young with milk provided
by mammary glands.being homeothermic.
43
Adaptations to marine environments exhibited by
the various bird species include
44
webbed feet.the ability to fly underwater and
over wide expanses of water.bill adaptations,
such as the pelicans pouch.
45
The role birds play in marine ecosystems include
46
being predators and prey.providing nitrogen
compounds to the ocean.
47
Members of class Aves share the characteristic of
48
feathers and laying internally fertilized
eggs.forelimbs that are wings.
49
Marine reptiles include
50
sea snakes and 15 species of marine
lizard.saltwater crocodile.seven species of
marine turtle.